Komatsu WA500-6H, Operation & Maintenance Manual

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Operation 3.2 Explanation of components
WA500-6H – VEAM430100
3-35
1. Torque converter oil temperature gauge
This meter (1) indicates the torque converter oil temperature.
During normal operations, it should be in the green range.
If it enters the red range during operations, the alarm buzzer
sounds, the central warning lamp lights up, and “E02 TC OVER-
HEAT“ is displayed on the character display.
Run the engine under no load at a mid-range speed and wait
until the indicator returns to the green range.
2. Engine cooling water temperature gauge
This meter (2) indicates the engine coolant temperature.
During normal operations, it should be in the green range.
If it enters the red range during operations, the alarm buzzer
sounds, the central warning lamp lights up, and “E02 ENGINE
OVERHEAT“ is displayed on the character display.
Run the engine under no load at a mid-range speed and wait
until the indicator returns to the green range.
3. Hydraulic temperature gauge
This meter (3) indicates the hydraulic oil temperature.
During normal operations, it should be in the green range.
If it enters the red range during operations, the alarm buzzer
sounds, the central warning lamp lights up, and “E02 HYD
OVERHEAT“ is displayed on the character display.
Run the engine under no load at a mid-range speed and wait
until the indicator returns to the green range.
4. Fuel gauge
This meter (4) indicates the amount of fuel remaining in the fuel
tank.
If the indicator is at the F position, it indicates that the tank is full.
If the indicator is at the E position, it indicates that there is little
fuel remaining. When the amount of remaining fuel goes below
53 liters (14.0 US gal) (range A), the caution lamp inside the fuel
gauge lights up.
If it lights up, check the fuel level and add fuel.
GK050041
GK050042
GK050043
GK050044
A